Build or Bill

Writing and content

ProWritingAid alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

languagetool-org/languagetool14,772LGPL-2.1Multi-language grammar and style checker with rules engine, server, and client integrations.Open on GitHub theJayTea/WritingTools2,397GPL-3.0System-wide grammar assistant that integrates with OS text input using local or cloud LLMs.Open on GitHub

What you give up either way

  • Plagiarism checker and Story Credits advanced manuscript analysis
  • Premium Pro features: live workshops, daily cowriting sprints, group critique sessions
  • Desktop editor apps and Microsoft Office native integration
  • Polished large-suite reports (50+ bespoke writing reports) and long-term brand/market presence

An open-source project doing the core job proves a replacement is possible. It does not prove it matches ProWritingAid, and it does not prove anyone has run it for a month. How we decide.